Welcome to Bitlash Online. Bitlash is an open source interpreted language shell and embedded programming environment. This website documents Bitlash for the popular and useful Arduino. The Bitlash shell runs entirely on the Arduino and supports many of the familiar Arduino functions. Bitlash interprets commands you type on the serial port: bitlash here! v1.1 (c) 2010 Bill Roy -type HELP- 1383 byte